Manhole Cover for Boats - Marine Hatch Cover - Hi-sea

Manhole Cover for Boats

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Steel Manhole Cover

Suitable for steel ships with watertight and oiltight requirements. This cover is in conformity to the standard of ISO5892 and CB/T19-2001. We supply various kinds of covers, please contact us for more information if you are interested in our products.

Drawing & Specifications:

A:  manhole cover with coaming

B:  flat manhole cover

C:  sunk manhole cover

type clear size l1  l2 l3 b1 b2 b3 s bolt weight kg
mm dia qty
A 450*350 450 470 570 350 370 470 4 M20 16 23.2
6 30.8
8 36.9
10 45.8
600*400 600 620 720 400 420 520 6 20 48.8
8 59.2
10 69.3
12 79.6
800*600 800 820 920 600 620 720 8 26 52.4
10 65.8
12 78.2
14 90.2

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type clear size l1  l2 l3 b1 b2 b3 s bolt weight kg
mm dia qty
B 450*350 450 470 570 350 370 470 4 M20 16 28.9
6 33.8
8 37.2
10 41.2
600*400 600 620 720 400 420 520 8 20 49.5
10 55.6
12 61.3
14 67.6
800*600 800 820 920 600 620 720 12 26 57.2
14 75.2
16 82.8
18 89.9
800*400 800 830 930 400 430 530 12 24 56.8
14 63.2
16 69.2
18 76.2


Optional Certificates: CCS, NK, LR, RINA, IRS, ABS, DNV.GL, RMRS, BV

Picture Figure:

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Contact with us now

Our mail: hs@cqhisea.com

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